<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <div><input type="text" value="北京市" id="inp"></div>
    <div><input type="text" value="朝阳区" id="inpt"></div>
    <button onclick="btn()">传参</button>
</body>
<script>
    var hh=document.getElementById('inp')
    var yy=document.getElementById('inpt')
    function btn(){
        alert(hh.value)
        alert(yy.value)
    }
</script>
</html>